Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
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What is the Maximum Energy for a Child on a Pogo Stick?
- AznBoi
- · Replies 32 ·
Can Elastic Collisions Be Solved Quickly with Minimal Steps?
- rachelx46
- · Replies 4 ·
How Does Conservation of Energy Determine Final Speed?
- simonegdell
- · Replies 21 ·
Kinematics questions from a new physics student
- Intr3pid
- · Replies 2 ·
Electricity, force, and component form
- abeltyukov
- · Replies 1 ·
How Can You Demonstrate Angular Velocity and Acceleration in Class?
- elitespart
- · Replies 3 ·
Why is drinking through a straw easier on Earth than on the moon?
- pmp!
- · Replies 15 ·
What Force Accelerates a Car When You Push the Accelerator?
- pivoxa15
- · Replies 8 ·
Why Heat Shields are Necessary for Crewed Spacecraft Re-Entry
- pivoxa15
- · Replies 2 ·
Tarzan's River Crossing Dilemma: Can He Swing Across Safely?
- mikesown
- · Replies 4 ·
Average speed for a round trip with different speeds each way
- blaziken's_charizard
- · Replies 11 ·
How Would You Apply Newton's Laws With Rock Climbing?
- xbb
- · Replies 18 ·
Understanding Parity in Quantum Mechanics
- Brewer
- · Replies 1 ·
What is the fraction of an iceberg's volume exposed in seawater?
- kitty9035
- · Replies 2 ·
Can a 5.0W pump save a sinking boat taking on 14.0 liters per minute?
- Diggidy
- · Replies 2 ·
Calculating Distance of Falling Rock
- Minkowski
- · Replies 2 ·
Spring Simple Harmonic Motion problem
- klove1313
- · Replies 7 ·
Horizontal and vertical forces on door hinges
- IMGOOD
- · Replies 3 ·
How Do You Calculate Force in a Momentum Problem?
- street
- · Replies 4 ·
How Does Angular Acceleration Affect Spacecraft and Clock Movements?
- syncstarr
- · Replies 1 ·
Where is the center of gravity of this person
- Gauss177
- · Replies 1 ·
Millennium Theory of Inertia and Gravity
- lneilson
- · Replies 1 ·
Baseball projectile motion with wall clearance
- mikesown
- · Replies 9 ·
Two Blocks, Springs, and Friction
- phoenix9
- · Replies 7 ·
Maximizing Study Strategies for a Physics Exam: Tips and Advice from a Scientist
- soulja101
- · Replies 3 ·
How are pictures drawn by M.C. Escher breaking the laws of physics?
- chibichibi7554
- · Replies 17 ·
Calculating Electron Strike Rate in an X-Ray Tube at 50mA Current
- theCandyman
- · Replies 2 ·
Demonstrating angular velocity and accelaration
- elitespart
- · Replies 1 ·
How Does Changing Orientation Affect Spin Rate in a Magically Twirling Baton?
- hkyriazi
- · Replies 1 ·
Why Might the Efficiency of a Stirling Engine Differ from a Carnot Engine?
- Psi-String
- · Replies 4 ·
Distance from sound source using intensity levels at two points
- ubiquinone
- · Replies 4 ·
How Do You Calculate the Electric Potential Difference Between Two Points?
- Fusilli_Jerry89
- · Replies 1 ·
Net force on hot-air balloon with 1.5 m³ volume at 75°C
- kop442000
- · Replies 3 ·
Is the magnetic part of the Lorentz force conservative?
- Kolahal Bhattacharya
- · Replies 3 ·
Earth's moment of inertia 0.331MR² and mass distribution
- syncstarr
- · Replies 6 ·
Understanding Voltage Divider Rule in Parallel Circuits
- Nuklear
- · Replies 6 ·
Max Height of Lamp Push for Sliding vs. Tipping
- IMGOOD
- · Replies 1 ·
Calculating Acceleration and Velocity of a Boat in Motion
- L²Cc
- · Replies 19 ·
Why does Faraday's law work for both moving wires and changing fields?
- boris16
- · Replies 1 ·
How Do You Solve Momentum and Collision Problems in Physics?
- mike305
- · Replies 8 ·
Solving Weak Interactions: W- vs W+
- fabbo
- · Replies 1 ·
Finding marble mass and count from bag masses
- blastyournos
- · Replies 19 ·
Gauge pressure and fluids problem
- kitty9035
- · Replies 5 ·
How Do You Calculate Car Acceleration from a Hanging Object's Angle?
- AznBoi
- · Replies 16 ·
Torque on crane arm and load limit
- syncstarr
- · Replies 4 ·
Solve Physics Hang Time Problem on Webassign with One Submission Left
- omiz144
- · Replies 8 ·
Finding the Root of a Quadratic Equation with Factoring Difficulty
- AznBoi
- · Replies 15 ·
Calculating Angular Velocity and Energy Loss in a System of Two Rotating Discs
- MathematicalPhysicist
- · Replies 2 ·
Specific and latent heat question
- endeavor
- · Replies 7 ·
How Do You Solve a Rotational Equilibrium Problem Involving a Meterstick?
- syncstarr
- · Replies 2 ·
Relationship between say an opening and the wavelength
- rmarkatos
- · Replies 1 ·
Banking angle for a frictionless curved exit ramp
- AznBoi
- · Replies 13 ·
What is the acceleration of a buoyant alcohol-filled shell in water?
- AG1189
- · Replies 2 ·
How Do You Calculate Forces in Rotational Equilibrium Problems?
- syncstarr
- · Replies 1 ·
Spring Constant and Distance: Find the Stretch of Each Spring
- prettyinpink
- · Replies 3 ·
Measuring friction with elastic band stretch instead of spring scale
- pharm89
- · Replies 2 ·
Force & Springs Homework: Find Magnitude of F & Compression of Spring
- minitorpedo
- · Replies 4 ·
How Fast Do Electrons Travel in a TV Tube?
- rgo
- · Replies 1 ·
The Photoelectric effect and classical physics
- erty
- · Replies 9 ·
How Many Feet Are in a Light-Second?
- wunderkind
- · Replies 3 ·
By how much does each spring stretch?
- minitorpedo
- · Replies 35 ·
Determining the satellite's altitude above the surface of the Earth
- torquey123
- · Replies 1 ·
How Do You Calculate Forces and Friction in Everyday Motion Scenarios?
- pharm89
- · Replies 9 ·
How Do You Calculate Work and Internal Energy in Thermodynamics?
- buttterfly41
- · Replies 3 ·
Flywheel and spinning sphere dropped into cavity at different axes
- Zell2
- · Replies 15 ·
Gravitacional Field and momentum conservation
- Littlepig
- · Replies 3 ·
EEI project ideas for final year physics
- australianschoolkid
- · Replies 8 ·
Can You Build a Speaker from Scratch?
- Firm
- · Replies 4 ·
Entropy of a Refrigerator: Is It Constant?
- turdferguson
- · Replies 1 ·
Rotational Motion of compact disc
- AznBoi
- · Replies 14 ·
Kepler's Laws-What am I doing wrong here?
- AznBoi
- · Replies 9 ·
MOTION EQUATION what am I missing here?
- ja50n
- · Replies 29 ·
Centripetal acceleration car problem
- AznBoi
- · Replies 19 ·
Magnitude, force and acceleration questions
- pharm89
- · Replies 19 ·
How Does Firing Cannonballs Inside a Railroad Car Affect Its Position and Speed?
- Coldie
- · Replies 6 ·
Is Work Done While Walking Without External Force Applied?
- shehri
- · Replies 5 ·
How Long Does It Take for a Box to Move Without Slipping on a Conveyor Belt?
- GUC_Stud
- · Replies 1 ·
How Is a Charge Deflected by a Fixed Charge in an Electric Field?
- lx2
- · Replies 1 ·
Calculating Average Kinetic Energy of a Running Boy
- lingling
- · Replies 4 ·
Demonstrating Newton's laws for a science competition project
- Lunthar
- · Replies 9 ·
What Are the Key Principles of Static and Dynamic Equilibrium in Physics?
- ladyrachelle
- · Replies 1 ·
Ballistic Pendulum and Projectile Motion
- jkb
- · Replies 3 ·
Why does Gauss's law apply to non-spherical surfaces?
- physgirl
- · Replies 5 ·
Electric Potential Conductor Problem
- lizzyb
- · Replies 10 ·
Force on Cannon After Firing: Solving the Problem
- dionysus
- · Replies 3 ·
The force tha apears betwin the plates of a capacitor
- asdfghjkl2007
- · Replies 6 ·
Lithium-6 bombarded with proton produces alpha particle
- pivoxa15
- · Replies 6 ·
Harmonic oscillator, friction, impulse
- covers
- · Replies 5 ·
How Fast Will Box A Hit the Floor in a Pulley System?
- Johnny_99
- · Replies 3 ·
Circuit analysis (thevenin equivalence)
- dfx
- · Replies 8 ·
Internal voltage and resistance of a power supply
- Celt67
- · Replies 13 ·
Designing a newspaper bridge with Warren truss for stress testing
- Frillth
- · Replies 1 ·
Couple More Questions on Electrostatics
- Fusilli_Jerry89
- · Replies 3 ·
Paper roll unrolling on a horizontal surface
- montreal1775
- · Replies 1 ·
Hi, with vectors in diff directions
- HT2791
- · Replies 3 ·
Solving Physics Problems: Tension, Friction, and Acceleration Explained
- Landstander182
- · Replies 2 ·
How Do You Calculate Temperature Changes and Heat Requirements in Water?
- demode
- · Replies 1 ·
Are gamma rays more dangerous than alpha or beta particles?
- pivoxa15
- · Replies 3 ·
Isobaric Process: del(H) = mC(v)dT + (P.dV)/J
- Amith2006
- · Replies 2 ·
Units of C(p) and C(v) in equation (1) are Joule/Kilogram-Kelvin.
- Amith2006
- · Replies 2 ·